Machine for making photographic prints



Jan. 1 1927.

c. BARBIERI ET AL MACHINE Fonmxme mimosa/ware Palm's Original Filed Jan. 19. 1921 Patented Jan. 18, 1927.

UNITED STATES CESARE BARBIERI AND PAUL CARPENTER, OF CHICAGO, ILLINOIS.

MACHINE FOR MAKING PHOTOGRAPHIC PRINTS.

Application filed January 19, 1921, Serial No. 438,419. Renewed June 12, 1926.

at small expense: the provisionof a drying machine adapted for ironing out or flattening the prints produced; the provision of an improved arrangement of drying and flattening rolls; and generally, to improve cheapen and simplify the construction of machines for drying photographic prints, together with such further objects as will hereinafter appear.

Machines available at this day for the purposes referred to, as known to us, are objcctionable' in the following among other respects, viz: the machines do not dry with sufficient rapidity, and prints made by such machines are often delivered in a crinkled condition.

In overcoming certain disadvantages referred to and in attaining the foregoing objects, and certain additional benefits and advantages to be below disclosed, we have provided the construction illustrated in the accompanying drawings, wherein Figures 1 and 2 are, respectively, a side clevational view, partly in section, and a top plan view with certain parts removed for the sake of clarity, illustrating a preferred form of mechanism embodying our invention.

Referring now to the drawings, 31 designates the print to be dried, after it has received its final fluid treatment. The first step in the drying process is to squeeze out as far as may be any moisture remaining on the paper after it has received its final fluid treatment, and for this purpose a pressure roller 80 is provided which is pivoted at 82 to extension 83 of the frame so that it is yieldingly pressed against the roll by means of the springs 84:. For drying the printed surface of the sheet as it emerges from between the rolls 65 and 80, we provide a heated roll 90 preferably arranged to bear against the roll 65 in order through such contact to heat it by radiation, thus quickening the drying of the sheets. To ironout or flatten the sheet we employ a roll 91' bearing against the roll 90* whereby and through such contact it is also heated. by radiation. For heating the roll' 90, and thereby the rolls 65 and 91, we preferablyemploy a gas flame indicated at 92, furnishedby a Bunsen burner 93, provided with gas and air supply pipes 94: and 95,. respectively, having stop-cocks 96 and 97, whereby the flow of gas and airmay be proportionately and absolutely controlled.

The roll 91. is provided with journals 98', (Figure 2) yieldingly' resistant devices in cluding springs 99 and set screws IOOcarricd by frame extensions 101 being provided for adjusting the pressure of the roll 91 on the roll 90. Aside from the obvious advantages of the spring devices acting on the rolls and 91, and those hereinabove' suggested, it is to be understood that these: are: of benefit in that they automatically make accommodation for variations in the thicknesses of papers passing through the machine.

After leaving the roll 91 the: print passes around the roll 110 of atypeor plate printing; apparatus over the roll- 98 again to a rolling-up apparatus. The finished print is conveyed horizontally with its photographically printed side up ready for inspection, forward to a re-rolling device, including belts 125 and 126 suitably supported on rollers 127 and 128 and 129, the roller 127 being provided with a sprocket 127, and driven through a chain 128 by a sprocket 65 on the roll 65, thus delivering the prints to a rewinding roll 130 at a point E convenient to the operator who is ordinarily engaged in feeding the machine, the chain 128 serving to secure a uniform drive of the rolls 127 and 65.

For actuating the several parts of the machine we have above described, a shaft 162 is provided driven by a source of power not shown. This shaft runs transversely with respect to the rolls. Bevel pinions 160 and 161 are provided for driving the shafts carrying the rolls 65 and 110, while the shaft 127 is driven from the roll 65 by the chain 128 engaging sprockets 127 and 65 Inasmuch as the bearings of the members 80, 65, 90, 98, 110, 127, 128 and 129 are in parallel substantially horizontal planes, it is apparent that in the construction of a machine embodying our improvements we have provided as far as may be against distortion of the paper in its passage therethrough.

In view of the foregoing specification, it

is thought that a more amplified description of the operation of the machine will be unnecessary, and that it will be readily understood by those who are skilled in the art to which our invention pertains.

Having thus described our invention and illustrated its use, what we claim as new and desire to secure by Letters Patent is:-

1. A drying apparatus for continuous moving sheets of fibrous material comprising a heated roll over which the sheet is passed, a second roll yieldingly pressed against said heated roll adapted to iron out said sheet, said sheet being passed over said second roller also.

2. A drying apparatus for. continuous moving sheets of fibrous material comprising a pair of squeezing rolls, a heated drying roll and an ironing roll acting in conjunction with said drying roll, and means for passing the sheet between and around the said rolls.

3. A drying apparatus for continuous moving photographic prints comprising a heated drying roll, and means for delivering the dried print horizontally with its printed side up.

t. A drying apparatus for continuously moving photographic strips comprising a pair of squeezing rollers, a heated drying roller and an ironing roller acting in con- ]unctionwith said drying roller and means for passing the strip between and around both of said rollers for delivering the dried and ironed strip substantially horizontally with its printed side up.

A drying apparatus for continuously moving a strip of fibrous material. comprising a. pair of parallel rollers one of which is heated, means for feeding the strip between and around both of said rollers, and pressing rollers engaging said strip adjacent the parallel rollers, said strip passing around one of said pressing rollers.

6. A drying apparatus for continuously moving a strip of fibrous material comprising a pair of: substantially contiguous parallel rollers one of which is heated, means for feeding the strip between and in contact with both of said rollers, and pressing rollers engaging said strip adjacent the parallel rollers, said strip passing around one oi. said pressing rollers.

7. A drying apparatus for contiuumis moving sheets of fibrous material comprising a pair of squeezing rolls. a heated drying roll and an ironing roll acting in conjunction with said drying roll and located immediately adjacent to and cooperating with said squeezing rolls, and means for passing the sheet between and around the said rolls.

in testimony whereof we have signed our names.

CESARE BARBI-ERI. PAUL CARPENTER.

hereunto 

